;;
  ;;  spreadspace pic utils
  ;;
  ;;
  ;;  Copyright (C) 2011-2013 Christian Pointner <equinox@spreadspace.org>
  ;;
  ;;  This file is part of spreadspace pic utils.
  ;;
  ;;  spreadspace pic utils is free software: you can redistribute it and/or modify
  ;;  it under the terms of the GNU General Public License as published by
  ;;  the Free Software Foundation, either version 3 of the License, or
  ;;  any later version.
  ;;
  ;;  spreadspace pic utils is distributed in the hope that it will be useful,
  ;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
  ;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  ;;  GNU General Public License for more details.
  ;;
  ;;  You should have received a copy of the GNU General Public License
  ;;  along with spreadspace pic utils. If not, see <http://www.gnu.org/licenses/>.
  ;;
  ;; -------------------------------------
  ;; PREAMBLE

  LIST      p=16F887
  include   "p16f887.inc"
  __config  _CONFIG1,  _DEBUG_OFF & _LVP_OFF & _FCMEN_OFF & _IESO_OFF & _BOR_OFF & _CPD_OFF & _CP_OFF & _MCLRE_ON & _PWRTE_OFF & _WDT_OFF & _INTOSC
  __config  _CONFIG2,  _BOR21V & _WRT_256

  ;; -------------------------------------
  ;; DEFINES (chip/com specific)
#define BOOTPIN           PORTA,5
#define INTPIN            PORTC,2
USERVECT        EQU       H'100'
ISRVECT         EQU       USERVECT + H'4'
FLASH_BOUNDARY  EQU       b'00001111' ; flash write boundary is at 16 bytes boundaries

VERSION_MAJ     EQU       .0
VERSION_MIN     EQU       .1
NAME_0          EQU       'C'
NAME_1          EQU       'T'
NAME_2          EQU       'R'
DEVID_L         EQU       H'82'
DEVID_H         EQU       H'20'
FLASH_SIZE_L    EQU       H'00'
FLASH_SIZE_H    EQU       H'20'       ; 0x2000 -> 8192 Words of Flash
FSS             EQU       .16         ; writing is done 8 words at a time but 16 words get erased
EEPROM_SIZE_L   EQU       H'00'
EEPROM_SIZE_H   EQU       H'01'       ; 0x0100 -> 256 Bytes of EEPROM
MESS            EQU       .64         ; this limit is because of to combuff size and single byte len field for messages
CFG             EQU       .2          ; anyway this is not read or writable for this chip
SUPPORTED_H     EQU       .0
SUPPORTED_L     EQU       b'00000110' ; only read/write flash is supported by now

#define HOOK_CMD_RESET    cmd_not_impl
#define HOOK_CMD_R_FLASH  cmd_r_flash
#define HOOK_CMD_W_FLASH  cmd_w_flash
#define HOOK_CMD_R_EEPROM cmd_not_impl
#define HOOK_CMD_W_EEPROM cmd_not_impl
#define HOOK_CMD_R_CONFIG cmd_not_impl
#define HOOK_CMD_W_CONFIG cmd_not_impl

  ;; Variables
combuff         EQU       H'0020'
current_cmdlen  EQU       H'0070'
csum            EQU       H'0071'
flags           EQU       H'007D'
cnt             EQU       H'007F'

bootmacro macro                 ; use this for com-spi
  bsf       STATUS,RP0
  bsf       STATUS,RP1
  bcf       ANSEL,ANS4          ; RA5/SS as digital input -> BOOTPIN
  goto      com_init
  endm

  ;; -------------------------------------
  ;; DEFINES (defines)
#include "generic-defines.inc"

  ;; -------------------------------------
  ;; Bootloader init
#include "generic-init.inc"

  ;; -------------------------------------
  ;; Bootloader (com specific subroutines and init)
#include "com-16f887-spi.inc"

  ;; -------------------------------------
  ;; Bootloader (generic init/body)
#include "generic-mainloop.inc"

  ;; -------------------------------------
  ;;  chip specific commands
#include "cmds-16f887.inc"

  ;; -------------------------------------
  ;; -------------------------------------
  ;; dummy user code
  org       USERVECT
  goto      USERVECT

  ;; -------------------------------------
  ;; END
  end